High Spin Spectroscopy and Shape Evolution in 105Cd

TL;DR

This study investigates high spin states and shape evolution in 105Cd using gamma spectroscopy, assigning spins and parities, and comparing observed band structures with theoretical models like TPSM and Cranked Shell Model.

Contribution

It provides new experimental data on 105Cd's level scheme up to 10.8 MeV and compares these findings with advanced theoretical models for shape evolution.

Findings

30 new gamma transitions observed

Agreement of observed bands with TPSM predictions

Shape evolution explained by Cranked Shell Model

Abstract

High spin states in 105Cd were studied using 16O beam on 92Mo reaction at an incident beam energy of 75 MeV. The level scheme of 105Cd has been observed up to an excitation energy of 10.8 MeV with the addition of 30 new gamma transitions to the previous work. Spin and parity for most of the reported levels are assigned from the DCO ratios and linear polarization measurements. The microscopic origin of the investigated band structures is discussed in the context of triaxial projected shell model. The energies of observed positive and negative parity bands agree with the predictions of the TPSM by considering triaxial deformation for the observed excited band structures. The shape evolution with increasing angular momentum is explained in the framework of Cranked Shell Model and the Total Routhian Surface calculations.